Beginning with a concept of the work as a simple context, a staged scene, in which interactions with the spectator may occur, in Unexpected Machines, Pugliese indeed seems to contrast the actual devices which are themselves subjects of interaction. The observer is not alone, he is not the only subject who sees and hears; he discovers, however, that there are other actors besides himself who step onto the stage and might have the power to steal the scene from him. That’s what happens with Equilibrium, a work comprised of mechanical arms equipped with a microphone and a speaker that move and follow each other according to the acoustic feedback. A complex software system, developed by the artist, controls the motors and movements of the robots which seem to chase after each other like children playing hide-and-seek. Feelings of surprise and wonder are kindled in the observer before this theater of sound in search of itself. Daniele Capra